1 files changed, 68 insertions, 0 deletions
diff --git a/src/walu/arp.py b/src/walu/arp.py
new file mode 100644
index 0000000..82f8445
--- /dev/null
+++ b/src/walu/arp.py
@@ -0,0 +1,68 @@
+#!/usr/bin/env python3
+
+import names
+
+class arp:
+    table = {}
+
+    def __init__(self):
+        self.refresh()
+
+    @staticmethod
+    def flag_to_status(flag):
+            flagmap = {
+                "0x0" : "offline",
+                "0x2" : "online",
+                "0x6" : "manual",
+            }
+
+            try:
+                status = flagmap[flag]
+            except:
+                return "chilling with penguin"
+            else:
+                return status
+
+    def refresh(self):
+        self.table = {}
+
+        with open("/proc/net/arp") as f:
+            f.readline() # skip table header
+
+
+            for line in f:
+                row = line.split()
+
+                ip = row[0]
+                flag = row[2]
+                mac = row[3]
+                dev = row[5]
+
+                name = names.iptoname(ip)
+                if not name:
+                    name = names.mactoname(mac)
+                if not name:
+                    name = "Anon"
+
+                self.table[ip] = {
+                    "name" : name,
+                    "mac" : mac,
+                    "dev" : dev,
+                    "status" : self.flag_to_status(flag),
+                }
+
+    def ip_to_status(self, ip):
+        try:
+            status = self.table[ip]
+        except:
+            pass
+        else:
+            return status
+
+    def ip_to_mac(self, ip):
+        try:
+            tab = self.table[ip]
+        except:
+            pass
+        else:
+            return tab["mac"]